The Noble Contrada of the Seashell is one of the seventeen contradas of Siena, located in the Terzo of San Martino. Its coat of arms features a seashell surmounted by a grand-ducal crown, with two branches of coral emerging from the ear of the valve, along with a pendant consisting of three golden Savoy knots separated by two roses of Cyprus: one red on the right and the other silver on the left. Its colors are blue striped with red and yellow. The motto of the contrada is “It’s the red of the coral that burns in my heart.”

The contrada holds the title of Noble for the valor of its militias at Montaperti (1260) and Porta Pispini (1527); for bringing water to the district (1469) and to the source of Pispini (1534).

Its associated Terzo is San Martino. The military companies of the contrada are Abbadia Nuova di sopra and Abbadia Nuova di sotto. The allied contradas of the Seashell are the Bruco, the Onda, and the Tartuca. The rival contrada of the Seashell is the Valdimontone. The patron saint of the contrada is Saint Cajetan of Thiene. The titular feast is celebrated on the Sunday around August 7. The traditional guild associated with the contrada is that of potters.

The Noble Contrada of the Seashell is one of the oldest contradas in Siena and has a long and rich history. The contrada is deeply cherished by its contradaioli (members), who are always ready to support it in its races in the Palio.